WO2001033358A1

WO2001033358A1 - Monitoring/controlling device

Info

Publication number: WO2001033358A1
Application number: PCT/JP1999/006109
Authority: WO
Inventors: Susumu Kojima; Gaku Todokoro
Original assignee: Fujitsu Limited
Priority date: 1999-11-02
Filing date: 1999-11-02
Publication date: 2001-05-10
Also published as: US20020126809A1; US6766016B2; EP1227403A1; EP1227403A4

Abstract

A monitoring/controlling device, wherein a high-order monitoring/controlling terminal monitors and controls transmission devices and has two monitoring modes; in one monitoring mode, each transmission device is prohibited from sending information to be transmitted to the high-order monitoring/controlling terminal and stores its mode change information in itself, and, when switching to the other mode, mode change information from individual transmission devices are sent in one collective message.

Description

Specification

Supervisory control equipment Technical field

The present invention relates to a supervisory control device, and more particularly to a supervisory control device in which an upper supervisory control terminal performs supervisory control of a transmission device.

In a supervisory control device in which a higher-level supervisory control terminal (OPS) and a plurality of transmission devices (NEs) communicate via LAN, DCC, etc., the operator of the higher-level supervisory control terminal must always recognize the status of each transmission device. is there. Background art

Conventionally, the following two methods have been used as devices for monitoring each transmission device via a communication line by a higher-level supervisory control terminal.

(1) As shown in Fig. 32, for example, when two transmission devices NE1 and NE2 are connected to the higher-level supervisory control terminal OPS through a communication line, the transmission device NE1 generates alarm A (501), alarm The status change of occurrence of B (502), occurrence of alarm C (503), recovery of alarm C (504), and recovery of alarm A (505) are sequentially notified to the upper supervisory control terminal OPS. Also, the generation of alarm D (506) and the generation of alarm E (507) are sequentially notified to the higher-level monitoring control terminal OPS. That is, in such a supervisory control device, each transmission device issues a real-time notification of the status change to the higher-level supervisory control terminal OPS every time a status change occurs.

(2) As shown in Fig. 33, the upper supervisory control terminal OPS reads the status of each of the transmission devices NE1 and NE2 from the side of the upper supervisory control terminal OPS. Emitted for each transmission device NE1 and NE2. In response, the transmission device NE1 issues a notification (602) to the higher-level supervisory control terminal OPS that there is no alarm currently occurring, and the transmission device NE2 is generating alarms D and E. (603) to the OPS.

After that, in the transmission device NE1, alarm A is generated (604), alarm B is generated (605), alarm C is generated (606), alarm C is recovered (607), and alarm A is recovered (608). State change The alarm D recovery (611) occurs as a state change in the transmission device NE2.

Thereafter, when an alarm read (609) is given from the higher-order monitoring and control terminal OPS to each of the transmission devices NE1 and NE2, a notification (610) that the alarm B is occurring is sent from the transmission device NE1 (610). A notification (612) issued to the OPS and indicating that alarm E is being generated from the transmission equipment NE2 is issued to the OPS.

In this way, the status monitoring command is sent from the upper supervisory control terminal to each transmission device as needed, and the transmission device that has received this read command notifies its own status change.

However, such conventional techniques have the following problems.

(1) If notification messages occur frequently from each transmission device, such as when an alarm is repeatedly generated and recovered in a short time, communication between the transmission device and the higher-level supervisory control terminal becomes congested.

(2) Only the current state of each transmission device at the time of reading can be recognized from the higher-level supervisory control terminal, and during that time, the operator can determine whether the status of each transmission device has changed. In some cases, it was not possible to cope with the occurrence of a failure, for example, it was not possible to recognize alarms that were generated or recovered before status reading.

Therefore, the present invention is to provide a monitoring and control device in which a higher-level supervisory control terminal performs supervisory control of a transmission device so as to reduce the congestion state of a communication line and to notify the higher-level supervisory control terminal side of a state change that has occurred accurately. With the goal. Disclosure of the invention

[1] In order to achieve the above object, in the monitoring and control apparatus according to the present invention of claim 1, the upper monitoring and control terminal has two monitoring states, and the upper monitoring and control terminal is in one monitoring state When the transmission device stores state change information to be transmitted to the higher-level supervisory control terminal, and when the higher-level supervisory control terminal shifts to the other monitoring state, each transmission device transmits the state change information to one message. And sending them together. That is, in the present invention, the upper-level monitoring control terminal has a function of switching the monitoring state, The two monitoring statuses, real-time monitoring and non-real-time monitoring, are changed according to the monitoring status of the controller.

The transmission device also has a state in which a state change is notified in real time (emission state) and a state in which it is not performed (emission suppression state). Each transmission device has a function of storing state changes during the output suppression state period, and notifying the higher-level supervisory control terminal of the stored state changes in a single message.

Such a principle will be described with reference to the configuration and operation example of FIG.

First, it is assumed that an operator is located on the upper supervisory control terminal OPS side, and for example, five transmission devices NE1 to NE5 are connected to this upper supervisory control terminal OPS via communication lines.

Initially, the upper-level monitoring and control terminal OPS is in a real-time monitoring state, monitoring the status (101 to 105) of each of the transmission devices NE1 to NE5. In the illustrated example, the transmission device NE1 is in a state (101) without an occurrence alarm, and the transmission device NE2 is also in a state (102) without an occurrence alarm. Also, the transmission device NE3 is in the state where the alarm F is generated (103), the transmission device NE4 is in the state where the alarms G and H are generated (104), and the transmission device NE5 is in the state without the generated alarm (105). )It is in.

Now, when the operator switches (106) the non-real-time monitoring state to the higher-level monitoring control terminal OPS, the higher-level monitoring control terminal OPS simultaneously switches all the transmission devices NE1 to NE5 to be monitored. Then, a state change notification suppression setting (107) is performed (claim 2).

Thereafter, until the operator performs switching (118) to perform real-time monitoring again, and the upper-level monitoring control terminal OPS executes the suppression release 19), each of the transmission devices # 1 to # 5 compares the status change with a data base, for example. Store it in a single space.

That is, in the example of FIG. 1, only the first state change notification (308, 310, 309) after the transmission suppression (107) is set in each of the transmission devices # 1 to # 5 is enabled, and the subsequent state changes are It is stored in a database etc. (Claim 3).

For example, in the transmission device NE1, after the occurrence of the alarm 通知 is notified (108), the alarm B is generated (111), the alarm C is generated (112), and the recovery of the alarm is performed as indicated by the status change in the dotted line 点. (113) and alarm A recovery (114) are stored in a database or the like. Also transmission In the device NE2, after the notification of the occurrence of the alarm D is notified (110), the occurrence of the alarm E (115) is stored in a database or the like as indicated by the state change ② of the dotted line. Further, in the transmission equipment NE4, after the recovery of the alarm G is notified (109), the recovery of the alarm H (116) and the generation of the alarm G (117) are stored in a database, etc. To be stored. For transmission equipment NE3 and NE5, there is no information to be stored in the database because no state change occurs.

In this way, after storing the status changes ① to ③ in a database or the like, the higher-level monitoring and control terminal OPS releases the suppression (119) based on the switching by the operator (118), and reads the status for each transmission device NE1 to NE5. Execute (120).

However, in this case, only the transmission equipment NE1, NE2, and NE4 were notified of the occurrence and recovery of the alarm as described above, so the higher-level monitoring and control terminal OPS sent these transmission equipment NE1, NE2, and NE4 The status reading (120) should be executed only for (Claim 4).

The transmission devices NE1, NE2, and NE4 that have received the command for status reading (120) transmit the status change during suppression as one message.

That is, in the case of the transmission equipment NE1, the state change ① is notified (121), in the transmission equipment NE2, the state change ② is notified (122), and in the transmission equipment NE4, the state change ③ is notified (123). ).

Then, the higher-level monitoring and control terminal OPS adjusts the received status changes 1 to 3 during the suppression period, for example, to the alarm database, and returns to the real-time monitoring status for each transmission device.

That is, the transmission device NE1 is in a state where an alarm B is occurring (124), the transmission device NE2 is a state where an alarm D and E are occurring (125), the transmission device NE3 is a state where an alarm F is occurring (126), The transmission device NE4 is in a state where an alarm H is being generated (127), and the transmission device NE5 is in a state where no alarm is generated (128), and these states are monitored in real time.

As a result, the number of messages issued from each transmission device to the higher-level supervisory control terminal can be reduced. In addition, even after the higher-level supervisory control terminal and each transmission device enter the non-real-time monitoring state, the first state change from each transmission device in the monitoring network Has a control function related to the notification that the upper-level supervisory control terminal or transmission device has been suppressed, so that the operator can recognize that a status change has occurred in the monitoring network without having to read the status one by one. It is possible to do.

[2] In the monitoring and control apparatus according to the present invention of claim 5, as in the above principle [1], the upper monitoring and control terminal has two monitoring states, and transmits the state change information of each transmission apparatus. Regarding the processing from the suppression to the release of the suppression, after the operator switches the monitoring state to the upper monitoring control terminal, the upper monitoring control terminal returns to the first state from one of the transmission devices. Under the condition that the change information is received autonomously, the state change from the setting of emission suppression to the release of the suppression may be stored in a database or the like, as in the principle [1] described above. .

This will be described with reference to the example of FIG. 2. Assume that each of the transmission devices NE1 to NE5 is in a real-time monitoring state corresponding to the state (101 to 105) shown in FIG.

In such a real-time monitoring state, when the operator instructs the higher-level monitoring control terminal OPS to switch to the non-real-time monitoring state (206), the higher-level monitoring control terminal OPS differs from the case of Fig. Do not immediately set emission suppression for NE1 to NE5.

Thereafter, a state change (alarm A is generated) occurs in a certain transmission device in the network, in this case, the transmission device NE1, and this state change notification (207) is given to the higher-level supervisory control terminal OPS.

Upon receiving this notification (207), the higher-level supervisory control terminal OPS performs a state notification suppression setting (208) for all the transmission devices NE1 to NE5 to be monitored.

From the output suppression setting (208), each of the transmission devices NE1 to NE5 does not issue a status change notification, and stores these status changes in a database or the like.

In the example of FIG. 2, in the transmission device NE1, the state change 実質 substantially corresponding to the state change 格納 shown in FIG. 1 is stored in a database or the like, and in the transmission device NE 2, the alarm D is generated (213). The occurrence of alarm E (214) is stored in the database or the like as state change ⑤, and in transmission device NE4, recovery of alarm G (215), recovery of alarm H (216), and generation of alarm G (217) Are stored in a database or the like as state change ⑥. When the operator switches the state of the higher-level supervisory control terminal OPS to perform real-time monitoring settings again (218), the higher-level supervisory control terminal OPS suppresses all transmission equipment NE1 to NE5 at the same time as this switching (218). In addition to sending the release (209) command, send the state read (220) command to read the state changes (1) to (6) from the emission suppression (208) to the suppression release (209).

In this case, since it is unknown what state change has occurred in each transmission device, the upper supervisory control terminal OPS can read the state change information during the emission suppression period from all transmission devices being monitored. Preferred (Claim 6).

As a result, each of the transmission devices NE1 to NE5 receiving the read (220) command notifies the status change during the inhibition period as one message (221 to 225).

The upper-level monitoring and control terminal OPS matches the status change received during the emission suppression period with, for example, the alarm history database, and returns to the real-time monitoring status. The real-time monitoring states (226 to 230) in this case correspond to the states (124 to 128) shown in FIG. 1 for the transmission devices NE1 to NE5 in the higher-level supervisory control terminal OPS.

[3] In the monitoring and control apparatus according to the present invention of claim 7, according to any of the above-mentioned principles [1] and [2], simultaneously with the release of the output suppression from the higher-level monitoring and control terminal to each transmission apparatus, The device is configured to autonomously notify the state change information stored during the emission suppression period.

This will be described with reference to FIG. 3. After the upper-level supervisory control terminal OPS gives the transmission suppression terminal (301) to the transmission devices NE1 and NE2, the transmission device NE1 changes the state ⑦ (302 to 305). ) Is stored in the database or the like as state change information as described above. Thereafter, when the transmission suppression release (306) is given to each of the transmission devices NE1 and NE2, the transmission device NE1 autonomously performs the above state change ても even without a read command as soon as the command is received. Notify (307). In this case, since the transmission device NE 2 does not store the state change information, it does not perform autonomous notification.

[4] In the monitoring and control apparatus according to the present invention of claim 8, in any of the above-mentioned principles [1] to [], the messages stored during the emission suppression period are notified in order of priority. It is like that.

This will be described with reference to Fig. 4. First, the upper-level supervisory control terminal OPS Execute emission suppression (401) for NE.

Based on this, the transmission device NE stores the status change (402) such as the occurrence of an alarm during this suppression period and the recovery thereof in a database or the like.

Then, when the operator switches the monitoring state of the higher-order supervisory control terminal OPS, the higher-order supervisory control terminal OPS sets the emission suppression release (403) to the transmission device NE, and further sends a status read (404) command. In the transmission equipment NE, the alarm that has been generated or recovered during emission suppression is notified first (405), and then the lower priority alarm that has been generated and recovered during emission suppression is notified (406). ). As an example, one of the above-mentioned monitoring states is a non-real-time monitoring state, and the other monitoring state is a real-time monitoring state (claim 9). BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a sequence diagram for explaining the principle [1] of the monitoring control apparatus according to the present invention.

FIG. 2 is a sequence diagram for explaining the principle [2] of the monitoring control device according to the present invention.

FIG. 3 is a sequence diagram for explaining the principle [3] of the monitoring control device according to the present invention.

FIG. 4 is a sequence diagram for explaining the principle [4] of the monitoring control device according to the present invention.

FIG. 5 is a block diagram showing an embodiment that implements the principle [1] of the monitoring and control device according to the present invention.

FIG. 6 is a diagram showing an example of the alarm history storage table used in FIG. FIG. 7 is a diagram showing an embodiment of the NE management table used in FIG.

FIG. 8 is a diagram showing an embodiment of the information management table used in FIG.

FIG. 9 is a diagram showing an embodiment of the state change storage table used in FIG. FIG. 10 is a state transition diagram of a higher-order supervisory control terminal used for the principle [1] of the supervisory control device according to the present invention.

FIG. 11 shows that the principle [1] of the supervisory control device according to the present invention allows the operator FIG. 7 is a flowchart (1) when a switching operation is performed from a remote monitoring state to a non-real-time monitoring state.

FIG. 12 is a flowchart (2) when the operator performs a switching operation from the non-real-time monitoring state to the real-time monitoring state in the principle [1] of the monitoring control apparatus according to the present invention.

FIG. 13 is a flowchart when the higher-level supervisory control terminal receives an autonomous notification from each transmission device in the principle [1] of the supervisory control device according to the present invention.

FIG. 14 is a state transition diagram of each transmission device in the principle [1] of the monitoring control device according to the present invention.

FIG. 15 is a transition diagram of the occurrence flag of the alarm management table.

FIG. 16 is a flowchart for detecting the state of each transmission device.

FIG. 17 is a flowchart when each transmission device detects a state change in the principle [1] of the supervisory control device according to the present invention.

FIG. 18 is a flow chart when the transmission device detects a state change in the principle [1] of the supervisory control device according to the present invention and the transmission device is set to suppress the transmission. FIG. 19 is a flowchart when each transmission device stores the data in a state change data base or the like.

FIG. 20 is a flowchart showing a process when each transmission device receives a read command.

FIG. 21 is a block diagram showing an embodiment of the principle [2] of the monitoring control apparatus according to the present invention.

FIG. 22 is a diagram showing an embodiment of the NE management table used in FIG.

FIG. 23 is a state transition diagram of a higher-order supervisory control terminal in the principle [2] of the supervisory control device according to the present invention.

FIG. 24 is a flowchart (1) when an operator performs a switching operation in the principle [2] of the monitoring control device according to the present invention.

FIG. 25 is a flowchart (2) when an operator performs a switching operation in the principle [2] of the monitoring control apparatus according to the present invention.

FIG. 26 shows the principle of the supervisory control device according to the present invention [2], in which FIG. 6 is a flowchart when an autonomous notification is received from each transmission device.

FIG. 27 is a flow chart when each transmission device detects a state change in the principle [2] of the supervisory control device according to the present invention.

FIG. 28 is a flow chart when each transmission device receives a suppression release message in the principle [3] of the monitoring control device according to the present invention.

FIG. 29 is a diagram showing an embodiment of the state change storage table used for the principle [4] of the monitoring control apparatus according to the present invention.

FIG. 30 is a flow chart when data is stored in the state change storage table in the principle [4] of the monitoring control apparatus according to the present invention.

FIG. 31 is a flow chart when responding to a read command in the principle [4] of the supervisory control device according to the present invention.

FIG. 32 is a sequence diagram showing an operation example (1) of the conventional supervisory control device.

FIG. 33 is a sequence diagram showing an operation example (2) of the conventional supervisory control device.

Explanation of reference numerals

OPS host monitoring and control terminal

NE (NE1-NE5) transmission equipment

1 User interface section

2, 6 Communication unit

3 OPS status switching section

31 Real-time monitoring flag

32 NE notification flag

4 Database

41 Alarm history storage table

42 NE management table

5 Control unit

51 Departure suppression flag

52 OPS notification flag

7 Status detector

8 Database 81 Information Management Table

82 State change storage table

In the drawings, the same reference numerals indicate the same or corresponding parts. BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 5 shows an embodiment for realizing the principle [1] (claims 1 to 4) of the supervisory control device according to the present invention shown in FIG. In this embodiment, the higher-level monitoring control terminal OPS includes a user interface unit 1, a communication unit 2, an OPS state switching unit 3, and a database 4.

The user interface unit 1 controls the interface between the operator and the OPS, such as displaying alarms to the operator and inputting operations from the operator. The communication unit 2 controls communication with the transmission device, such as transmission of control commands to each transmission device NE, autonomous communication from each transmission device NE, and reception of a response message. The OPS status switching unit 3 has a real-time monitoring flag 31, and controls the transition of the monitoring status of the higher-level monitoring control terminal OPS by using the flag 31.

The database 4 has an alarm history storage table 41 and an NE management table 42. As shown in Fig. 6, the alarm history storage table 41 consists of the type of alarm, the location, the date and time of recovery, and the date and time of recovery of the transmission device that generated the alarm, and can refer to past status changes of the transmission device. Like that.

The NE management table 42, as shown in FIG. 7, includes an NE ID (transmission device identifier) and a notification flag, and manages all transmission devices monitored by the higher-level monitoring control terminal OPS. . The notification flag is used to distinguish the transmission device that has received the status change notification during the suppression period.

On the other hand, each transmission device NE includes a control unit 5, a communication unit 6, a state detection unit 7, and a database 8, and the control unit 5 has an emission suppression flag 51 and an OPS notification flag 52, The autonomous notification is controlled by these flags. The communication unit 6 also controls communication with the higher-level supervisory control terminal OPS, such as receiving control commands from the higher-level supervisory control terminal OPS, issuing autonomous notifications, and issuing response messages. The state detection unit 7 detects an alarm state of hardware. Database 8 also contains alarms A management table 81 and a state change storage table 82 are provided.

As shown in FIG. 8, the alarm management table 81 includes an alarm type, an occurrence position, an occurrence flag, and an address pointer to the state change storage table 82. Further, as shown in FIG. 9, the state change storage table 82 includes an address, an alarm type, an occurrence position, an occurrence date and time, and a recovery date and time.

The operation of such an embodiment will be described below with reference to FIG. 1 and FIGS.

First, the operation of the upper supervisory control terminal OPS will be described.

FIG. 10 shows the state transition of the higher-order supervisory control terminal 〇PS. OPS has two monitoring states: real-time monitoring and non-real-time monitoring. The real-time monitoring flag 31 is "1" in real-time monitoring state S1, and real-time monitoring is in non-real-time monitoring state S2. The value of flag 31 is "0". This transition is made by an operation (106, 118 in FIG. 1) by the operator via the user interface unit 1.

FIG. 11 shows a processing flow of the upper-level monitoring control terminal OPS when the operator performs the switching operation (106 in FIG. 11). When the upper-level monitoring control terminal OPS is switched from the real-time monitoring state S1 to the non-real-time monitoring state S2 by an operator operation (step Sll), the real-time monitoring flag 31 is changed to "0" (step S12), and the NE management table 42 is displayed. The communication unit 2 sets emission suppression (step 107) for all the transmission devices NE (step S13), and sets the notification flag of the NE management table 42 to "0" (step S14).

FIG. 12 shows an example of processing when returning from the non-real-time monitoring state S2 of FIG. 11 to the real-time monitoring state S1. In this embodiment, when returning to the real-time monitoring state S1 by an operator operation (118) (step S15), the real-time monitoring flag 31 is set back to "1" (step S16), and the transmission suppression setting is released from the communication unit 2 for all the transmission devices NE on the NE management table 42 (step S17), and the NE management tape is released. In step 42, the command for reading the status change (120) is transmitted only to the transmission device whose notification flag is "1" (step S18).

Figure 13 shows the case where the higher-level supervisory control terminal OPS receives an autonomous notification from the transmission equipment NE. 3 shows a processing flowchart in the case. That is, when the higher-level supervisory control terminal OPS receives the autonomous notification from the transmission device NE (Step S21), it analyzes this transmission device (Step S22), stores it in the alarm history storage table 41 (Step S23), and From the value of the time monitoring flag 31, the monitoring status of the own station (upper monitoring control terminal OPS) is determined (step S24).

As a result, when the real-time monitoring status Sl = “1”, the status is stored in the alarm history storage table 41 as it is, and when the non-real-time monitoring status S2 = “0”, the transmission device NE which has been notified of the status change is distinguished. Therefore, the notification flag in the NE management table 42 is changed to “Γ” (step S25) and stored in the alarm history storage table 41.

This is due to the notification of the occurrence of alarm A at transmission device NE1 in Fig. 1 (108), the notification of the occurrence of alarm B at transmission device NE2 (110), and the notification of the recovery of alarm G at transmission device NE4 (110). 109) is stored in the alarm history storage table 41.

Next, the operation of the transmission device NE will be described.

As shown in FIG. 14, each transmission device NE switches between three states according to the emission suppression flag 51 and the OPS notification flag 52. The output suppression flag 51 is changed by setting the output suppression from the higher-level monitoring control terminal OPS (107) and canceling it (119). The OPS notification flag 52 is switched when a notification is issued to the higher-order monitoring control terminal OPS in the emission suppression state.

In other words, in the emission state S31, both flags 51 and 52 are “0”, but the inhibition setting from the higher-level monitoring and control terminal OPS (107) causes the emission inhibition flag 51 to be changed to “1”. When the state is changed to state S32 and a state change notification (108 to 110: 110) is issued in this state, the OPS notification flag 52 is also set to "と" and the inhibition notification is made (step S33). These states S32 and S33 are Both the flags 51 and 52 return to "0" upon receiving the suppression release from the higher-order monitoring and control terminal OPS (119).

FIG. 15 shows the transition state of the generated flag in the alarm management table 81 provided in the database 8. The value of the occurrence flag changes according to the alarm state detected by the state detection unit 7. In other words, when the corresponding alarm occurs, The state changes from "0" to T (occurrence state S42), and when it recovers, it returns to "0" from T (recovery state S41).

FIG. 16 shows a flowchart when each transmission device NE detects an alarm. Each transmission device NE detects an alarm state by the state detection unit 7 in a certain cycle (steps S51 and S52), and detects the state detected by the state detection unit 7 and the generation flag in the alarm management table 81. A comparison is made as to whether the values match (steps S53 and S56).

As a result, if they match, the process returns to the alarm detection cycle (steps S51 and S52), but if they do not match, the value of the generation flag is changed (step S54). And S57), the process proceeds to the process A when there is a state transition (step S55). FIG. 17 shows a flowchart of the process A (step S55) when each transmission device NE detects a state transition. When there is such a state transition, the transmission device NE determines whether or not the own station is in the emission suppression state based on the value of the emission suppression flag 51 (step S551).

As a result, if the transmission device NE is not in the emission suppression state (flag == "0";), the status change notification is sent as it is (steps S552 and S553). Returning to the cycle, if the status is in the output-suppressed state (flag = "1"), the process proceeds to processing B (step S58) in the output-suppressed state.

The processing B in this outgoing suppression state is shown in Fig. 18, and in this processing B, the case where the transmission equipment NE is already in the outgoing suppression state is shown. It is determined by the OPS notification flag 52 whether or not the terminal OPS has been notified (step S581).

As a result, when it is determined that the transmission device has never notified the status change (flag = "0"), the process for issuing the status change notification is performed (steps S582 and S583), and the OPS Change the value of the notification flag 52 to "1". On the other hand, if it is found that the notification has already been given (flag = "1"), the status change notification is not issued and the status change storage processing is performed.

Move to C (Step S59).

FIG. 19 shows a flowchart of the process C (step S59) shown in FIG. When storing status changes, determine whether an alarm has been generated or recovered from the value of the generated flag. (Step S591). In the event of occurrence (flag = "Γ"), the generated alarm, the generated location, and the generated time are added to the state change storage table 82 (step S592) .The added address so that the recovery time can be added is added to the alarm management table 81. (Step S593) In the case of recovery (flag = "0"), it is determined from the address pointer of the alarm management table 81 whether or not the alarm occurrence is stored in the state change storage table 82. (Step S594).

As a result, if there is no value in the address pointer, the occurrence notification has already been sent to the higher-order monitoring control terminal OPS, and the recovery alarm, the recovery location and the recovery time are added to 82 in the state change storage table (step S597). ).

If there is a value in the address pointer, the recovery time of the state change storage table 81 specified by the address pointer is added (step S595), and the address pointer value of the alarm management table 81 is deleted (step S595). Step S596).

FIG. 20 shows a flowchart when each transmission device NE receives a status read notification (120) from the higher-level supervisory control terminal OPS. When the transmission device NE receives the status change read notification from the higher-level monitoring control terminal OPS (steps S61 and S62), the transmission device NE reads the data stored in the status change storage table 82 (step S63). ), And notify the upper-level supervisory control terminal OPS in one message (steps S64 and S65).

After the notification, the transmission device NE deletes the data of the state change storage table 82 and the value of the address pointer of the alarm management table 81 and ends the process (steps S66 and S67). FIG. 21 shows an embodiment for realizing the principle [2] of the monitoring and control device according to the present invention shown in FIG. 2, and in this embodiment, the NE notification flag 32 is set in the OPS state switching unit 3. The feature is that the monitoring status of the upper monitoring control terminal is controlled by this flag 32.

FIG. 22 shows an embodiment of the NE management table 42 shown in FIG. 21. In this case, the NE management table 42 manages all transmission equipment NEs monitored by the higher-level monitoring control terminal OPS. Unlike Fig. 7, the notification flag is not used.

Further, in the embodiment shown in FIG. 21, the control unit 5 of each transmission device NE does not use the OPS notification flag 52, and controls the autonomous notification only with the emission suppression flag 51. This is different from the embodiment of FIG.

Hereinafter, the operation of this embodiment will be described with reference to FIG. 2 and FIGS. First, OPS is described.

FIG. 23 shows the state transition of the higher-order supervisory control terminal OPS in the embodiment shown in FIG. 21. The higher-order supervisory control terminal OPS has three states, namely, a real-time monitor flag 31 and an NE notification flag 30. Switches to the monitoring state S1, the non-real-time monitoring state S2, and the suppression notified state S70.

The real-time monitoring flag 31 is the same as that of the embodiment of FIG. 5, and is changed by the operation of the operator via the user interface unit 1. The NE notification flag 32 is set to "0" only when the higher-level supervisory control terminal OPS receives a status change notification from any transmission device NE in the monitoring network in the non-real-time monitoring status S2 (suppression notification status S70). "It changes to Γ.

FIG. 24 shows the processing flow of the higher-level supervisory control terminal OPS at the time of the operator switching operation (206 in FIG. 2). When the higher-level supervisory control terminal OPS is switched from the real-time monitoring state S1 to the non-real-time monitoring state S2 by an operator operation (step S81), the real-time monitoring flag 31 is changed to "0" and the processing ends.

On the other hand, when returning to the real-time monitoring state S2 by the operator's operation (step S91), as shown in FIG. 25, the value of the NE notification flag 32 indicates whether or not there has been a notification from each transmission device NE in the monitoring network. Is determined (step S92).

If the NE notification flag is "0", there is no state change in the monitoring network, so the real-time monitoring flag 31 is changed to "1" (step S96), and the process ends.

If the NE notification flag 32 is "1", the communication unit 2 sets the suppression release setting (219 in the above) to all transmission equipment NEs in the NE management table 42, and sends the status change read command (220 in the above). (Steps S93 and S94).

Then, the NE notification flag 32 is changed to "0" and the real-time monitoring flag 31 is changed to "1" (steps S95 and 96), and the processing ends.

FIG. 26 shows a processing flow in the case where the higher-level supervisory control terminal OPS receives the autonomous notification (207 in FIG. 26) from the transmission device NE. When the higher-level supervisory control terminal OPS receives the autonomous notification from the transmission device NE (step S101), first, the notified message is transmitted. After storing in the alarm history storage table 41 (step S102), the OPS state of the higher-level monitoring control terminal is determined from the value of the real-time monitoring flag 31 (step S103).

As a result, in the case of the real-time monitoring state S1 (flag = "1"), the processing ends as it is. In the non-real-time monitoring state S2 (flag = "0"), the NE notification flag 32 is changed to "1" (step S104), and the transmission suppression setting is performed for all transmission devices on the NE management table 42 (step S104). S 105).

Next, the operation of the transmission device NE in FIG. 21 will be described.

Each transmission device NE is switched between the state of issuing the state change notification and the state of inhibition by the emission inhibition flag 51. This emission suppression flag 51 is changed by the suppression setting (208) and the cancellation setting (219) from the higher-level monitoring control terminal OPS. The value is changed according to the alarm status detected by the status detector 7. It changes from "0" to T when the corresponding alarm occurs, and returns from "1" to "0" when it recovers.

The cycle in which each transmission device detects a state change is the same as the process (FIG. 16) in the embodiment of FIG. 5, and FIG. 27 shows process A when there is a state transition.

If there is a state transition (process A: step S111), it is determined whether the transmission device NE is in the emission state or the emission suppression state from the value of the emission suppression flag 51 of the transmission device NE (step S112). . As a result, when the transmission device NE is in the emission state (flag = "0"), the detected state change notification is issued as it is (steps S113 and S114), and the process returns to the state change detection cycle.

On the other hand, if the transmission device NE is in the emission-suppressed state (flag = "1"), the process proceeds to state change storage processing C (step S115).

Processing C when this state change occurs is the same as that in the embodiment of FIG. 5, and when the transmission device NE receives a state change read notification from the higher-level supervisory control terminal OPS (220), the processing in FIG. Similarly, each transmission device NE reads the data stored in the storage table 82 and notifies it to the higher-level supervisory control terminal OPS as one message. After the notification, the transmission device NE deletes the data in the state change table 82 and the value of the address pointer in the alarm management table 81, and ends the processing.

Next, an embodiment of the principle [3] of the supervisory control device according to the present invention shown in FIG. 3 will be described. In this case, the configuration of the higher-level supervisory control terminal OPS and the configuration of each transmission device NE can be the same as the configurations shown in FIGS. 5 and 21, but the process of sending a status read notification to the transmission device NE is not performed. . Further, the processing from the detection of the state of the transmission device NE to the storage of the notification is the same as in the above embodiments.

FIG. 28 shows a flowchart when the suppression setting (301 in FIG. 3) is canceled (306 in FIG. 3) according to the present embodiment.

When the inhibition setting has been released (step S121), it is determined whether or not there is data in the state change storage table 82 (step S122). If there is no data, the value of the emission suppression flag 51 is changed to "0" (step S125), and the processing ends. If there is data, the stored message is transmitted (steps S123 and S124), and the emission suppression flag 51 is changed (step S125).

Next, an embodiment of the principle [4] of the supervisory control device according to the present invention shown in FIG. 4 will be described.

In this embodiment, only the configuration of the state change storage table 82 is different from the above embodiments. That is, as shown in FIG. 29, the state change storage table 82 includes an address, an alarm type, an alarm position, an alarm date and time, a recovery date and time, and a priority flag.

FIG. 30 shows a flowchart of the process C (step S115) for storing the state change according to the present embodiment. First, in the process C, it is determined from the value of the occurrence flag whether an alarm has occurred or has been recovered (step S1151).

As a result, when it is determined that “occurrence” (flag == “1”), the occurrence alarm, occurrence location, and occurrence time are added to the state change storage table 82 (step S1152), and “ 1 "is stored (step S1153). The added address is stored in the address pointer of the alarm management table 81 so that the recovery time can be added (step S1154).

If "recovery" is determined in step S1151 (flag = "0"), it is determined from the address pointer of the alarm management table 81 whether the alarm occurrence is stored in the state change storage table 82 (step S1151). Step S1155).

As a result, if there is no value in the address pointer, the occurrence notification is sent to the upper monitoring control terminal. Since the OPS has already been notified, the recovery alarm, recovery location, and recovery time are added to the state change storage table 82 (step S1159), and "1" is stored in the priority flag (step S1160).

If the address pointer has a value, the recovery time of the state change storage table 82 specified by the address pointer is added (step S1156), the priority flag is changed to "0" (step S1157), and the alarm management is performed. The value of the address pointer in table 81 is deleted (step S1158).

FIG. 31 shows a flow chart in the case where each transmission device NE receives a status change read notification (404 in FIG. 4) from the higher-order supervisory control terminal OPS in this embodiment. When the transmission equipment NE receives the status change read notification from the higher-order supervisory control terminal OPS (steps S131 and S132), the transmission equipment NE first reads out the data stored in the status change storage table 82 ( (Step S133), a message of data in which the priority flag of the state change storage table 82 is "1" is created and notified to the higher-order monitoring control terminal OPS (steps S134 and S135).

Next, a message of data with a priority flag of "0" is created and notified to the higher-level monitoring control terminal OPS (steps S136 to S138).

After the notification, the transmission device NE deletes the data in the state change storage table 82 and the value of the address pointer of the alarm management table 81 and ends the process (steps S139 and S140).

In this way, in the non-real-time monitoring state, the notification when an alarm is generated or recovered is given high priority, and the notification when an alarm is generated but recovered is given low priority.

As described above, in the supervisory control device according to the present invention, the upper supervisory control terminal has two monitoring states, and when in one of the monitoring states, each transmission device should transmit to the upper supervisory control terminal. The system is configured to store the state change information internally while suppressing the information output, and to transmit the state change information as a single message from each transmission device when transitioning to the other monitoring state. Therefore, it is possible to reduce the amount of notification information from each transmission device to the higher-level supervisory control terminal, and to avoid a congestion state of communication between the two when an alarm occurs frequently. In addition, since the operator can immediately distinguish between a transmission device whose state has changed and a transmission device which has not changed, it is possible to quickly cope with a failure of the transmission device.

Claims

The scope of the claims

1. In a supervisory control device in which a higher-level supervisory control terminal performs supervisory control of a transmission device, when the higher-level supervisory control terminal has two monitoring states and the higher-level supervisory control terminal is in one of the monitoring states, the transmission device Stores state change information to be transmitted to the higher-level supervisory control terminal, and when the higher-level supervisory control terminal shifts to the other monitoring state, the transmission device power S and the state change information are combined into one message. A monitoring control device characterized by transmission.

2. In Claim 1,

A monitoring control device characterized in that an operator switches the monitoring status to the higher-level monitoring control terminal and, at the same time, suppresses and releases the transmission to each transmission device as the one monitoring status.

3. In Claim 2,

A supervisory control device characterized in that each transmission device only issues the first status change notification when the transmission device is set to inhibit emission.

4. In Claim 3,

When there is a status change notification from the transmission device to the higher-level supervisory control terminal, the higher-level supervisory control terminal reads the status change information only for the transmission device that has received the status change notification. Monitoring and control equipment.

5. In Claim 1,

After the operator switches the monitoring status to the higher-level supervisory control terminal, the higher-level supervisory control terminal autonomously receives the first status change information from the transmission device, and suppresses the transmission to each transmission device. A monitoring control device characterized by performing:

6. In Claim 5,

A supervisory control device characterized in that the higher-level supervisory control terminal reads out the state change information during the emission suppression period from all transmission devices to be monitored.

7. In any of claims 1 to 6,

At the same time as the release of the output suppression from the higher-level supervisory control terminal to the transmission device, the transmission device autonomously notifies the state change information stored during the output suppression period. Supervised control equipment.

8. In any of claims 1 to 7,

A monitoring and control device for notifying stored messages according to their priority.

9. In any of claims 1 to 8,

A monitoring control device characterized in that the one monitoring state is a non-real-time monitoring state and the other monitoring state is a real-time monitoring state.